Frederic Raphael explored the Pyrenees, the frontier between France and Spain, which at the time was preparing to join the European Economic Community.
Nadine Gordimer visited the war-torn border area between Mozambique and her native South Africa.
Richard Rodriguez showed how the rich North and poor South converged at the US/Mexican border.
Jon Swain visited the Thai/Cambodian border where thousands of Cambodian refugees had been stranded for over ten years.